AnyConverter
Free browser tools for PDFs, dev work and daily tasks
What it does
AnyConverter is a fast, privacy-first toolkit for everyday browser workflows: PDF merge, split, compress, edit and sign tools; calculators; JSON, Base64, URL, hash, JWT and regex utilities; plus QR codes, notes, timers and other quick productivity tools. Many tools run directly in the browser, so users can finish common tasks without account setup or heavy software.
Learn about free online tools on AnyConverter. Clear information about privacy, security, policies, and free online tools.
78+ powerful tools for developers and everyday users. Format JSON, edit PDFs, track habits, calculate finances and more — all free, no signup, 100% in your browser. Format, beautify and validate JSON with syntax highlighting. Detect screen resolution, viewport size, DPR and colour depth instantly. Reorder pages to any custom sequence — or duplicate and remove them. Trim page margins by entering top, bottom, left and right crop values. Stamp page numbers at header or footer with custom font size and prefix. Stamp a custom text watermark on every page. Adjustable opacity and colour. Remove the password from a PDF you own and download the unlocked copy. Set granular permissions: restrict…from anyconverter.io
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- MCMarkdownConverters – Convert any file format to clean MarkdownOct 2025 · markdownconverters.com · ▲9
Hey HN I built MarkdownConverters.com — a tool that converts any file format (PDF, DOCX, PPTX, HTML, or URL) into clean, structured Markdown. I often needed to prep documents, reports, or scraped pages for AI pipelines, documentation, or version control, but existing tools either broke formatting, lost code blocks, or produced unreadable Markdown. So I built something that focuses on: • Accurate structure (headings, lists, tables, code, links) • Consistent Markdown output ready for LLMs or docs • Fast, browser-based conversion with privacy-friendly processing • Support for multi-format and…



More work this month
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The app store for voice native apps that lives in your notch
Work · 28d ago · voiceos.com

The New Calendly▲211Handle all of the work before, during, and after meetings
Work · 17d ago · calendly.com
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com